“…Note in Figure B that the abscissa covers the range +35% to −70% deviation [100( p − p Wagner )/ p ]. Figure C (the abscissa spans the range ±10% deviation) shows the results of Neubeck, Gould et al, Dreisbach and Shrader, and McDonald et al Figure D (the abscissa spans the range ±3% deviation) shows the remaining references. ,− ,,,, Not included in Figure D is the value listed by Kahlbaum for 331 K (−6.7% deviation), which may be a typographical error. 3 Comparison of literature vapor-pressure measurements for benzenamine with those obtained using the Wagner equation (eq 1) and the parameters listed in Table .…”
Section: Discussionmentioning
confidence: 97%
“…The earliest references found were those of Ramsay and Young in 1885, Neubeck in 1887, and Kahlbaum in 1898 . In addition, a further 19 papers listing measured vapor pressures were obtained in a search of the literature during this research. − …”
Section: Discussionmentioning
confidence: 99%
“…(A) () results from the API Technical Report (Kudchadker 63 ); (· · ·) results using the DIPPR Project 801 Database 1984 version of the vapor-pressure equation; (- - -) results using the DIPPR Project 801 Database 1995 version of the vapor-pressure equation; (× in a box) Lastovtsev; (solid triangle pointing right) Lee et al (B) (triangle pointing right) Gurevich and Sigalovskaya; (□) Röck; (·) Danov and Shinyaeva; (▿) Pannier and Abello; (×) Gopal and Rizvi; (◇) Maher and Smith; (○) Rowley and Powell . (C) (triangle pointing right) Neubeck; (○) Gould et al; (×) Dreisbach and Shrader; (□) McDonald et al (D) (⊞) Ramsay and Young; (○) Kahlbaum; (triangle pointing right) Beckmann and Liesche; (+ in a circle) Garrick; (×) Crützen et al; (◇) Böhme et al; (▿) Hatton et al; (·) Stadnicki …”
This paper reports measurements made within DIPPR 2 Project 821 for the 1995 Project Year. Vapor pressures were measured to a pressure limit of 270 kPa or lower decomposition point using a twin ebulliometric apparatus for the nine compounds listed in the title. Liquid-phase densities along the saturation line were measured for each compound over a range of temperatures (ambient to a maximum of 523 K). A differential scanning calorimeter was used to measure two-phase (liquid + vapor) heat capacities for each compound in the temperature region ambient to the critical temperature or lower decomposition point. Where possible, the critical temperature and critical density for each compound were determined experimentally. The results of the measurements were combined to derive a series of thermophysical properties including critical temperature, critical density, critical pressure, acentric factor, enthalpies of vaporization (restricted to within (50 K of the temperature region of the experimentally determined vapor pressures), enthalpies of fusion if solid at 310 K, solubility parameters, and heat capacities along the saturation line. Vapor-pressure representations were derived for each compound. All measured and derived values were compared with those obtained in a search of the literature. Recommended critical parameters are listed for each of the compounds studied except 1-chloro-2-propanol. The compounds studied were benzenamine, butylbenzene, sec-butylbenzene, tert-butylbenzene, 2,2dimethylbutanoic acid, tridecafluoroheptanoic acid, 2-butyl-2-ethyl-1,3-propanediol, 2,2,4-trimethyl-1,3pentanediol, and 1-chloro-2-propanol.
“…Note in Figure B that the abscissa covers the range +35% to −70% deviation [100( p − p Wagner )/ p ]. Figure C (the abscissa spans the range ±10% deviation) shows the results of Neubeck, Gould et al, Dreisbach and Shrader, and McDonald et al Figure D (the abscissa spans the range ±3% deviation) shows the remaining references. ,− ,,,, Not included in Figure D is the value listed by Kahlbaum for 331 K (−6.7% deviation), which may be a typographical error. 3 Comparison of literature vapor-pressure measurements for benzenamine with those obtained using the Wagner equation (eq 1) and the parameters listed in Table .…”
Section: Discussionmentioning
confidence: 97%
“…The earliest references found were those of Ramsay and Young in 1885, Neubeck in 1887, and Kahlbaum in 1898 . In addition, a further 19 papers listing measured vapor pressures were obtained in a search of the literature during this research. − …”
Section: Discussionmentioning
confidence: 99%
“…(A) () results from the API Technical Report (Kudchadker 63 ); (· · ·) results using the DIPPR Project 801 Database 1984 version of the vapor-pressure equation; (- - -) results using the DIPPR Project 801 Database 1995 version of the vapor-pressure equation; (× in a box) Lastovtsev; (solid triangle pointing right) Lee et al (B) (triangle pointing right) Gurevich and Sigalovskaya; (□) Röck; (·) Danov and Shinyaeva; (▿) Pannier and Abello; (×) Gopal and Rizvi; (◇) Maher and Smith; (○) Rowley and Powell . (C) (triangle pointing right) Neubeck; (○) Gould et al; (×) Dreisbach and Shrader; (□) McDonald et al (D) (⊞) Ramsay and Young; (○) Kahlbaum; (triangle pointing right) Beckmann and Liesche; (+ in a circle) Garrick; (×) Crützen et al; (◇) Böhme et al; (▿) Hatton et al; (·) Stadnicki …”
This paper reports measurements made within DIPPR 2 Project 821 for the 1995 Project Year. Vapor pressures were measured to a pressure limit of 270 kPa or lower decomposition point using a twin ebulliometric apparatus for the nine compounds listed in the title. Liquid-phase densities along the saturation line were measured for each compound over a range of temperatures (ambient to a maximum of 523 K). A differential scanning calorimeter was used to measure two-phase (liquid + vapor) heat capacities for each compound in the temperature region ambient to the critical temperature or lower decomposition point. Where possible, the critical temperature and critical density for each compound were determined experimentally. The results of the measurements were combined to derive a series of thermophysical properties including critical temperature, critical density, critical pressure, acentric factor, enthalpies of vaporization (restricted to within (50 K of the temperature region of the experimentally determined vapor pressures), enthalpies of fusion if solid at 310 K, solubility parameters, and heat capacities along the saturation line. Vapor-pressure representations were derived for each compound. All measured and derived values were compared with those obtained in a search of the literature. Recommended critical parameters are listed for each of the compounds studied except 1-chloro-2-propanol. The compounds studied were benzenamine, butylbenzene, sec-butylbenzene, tert-butylbenzene, 2,2dimethylbutanoic acid, tridecafluoroheptanoic acid, 2-butyl-2-ethyl-1,3-propanediol, 2,2,4-trimethyl-1,3pentanediol, and 1-chloro-2-propanol.
“…Densities and viscosities may be determined easily and accurately with comparatively simple apparatus. Various methods for the determination of vapor pressures on a small quantity of pure liquid have appeared in the literature (4,8,17). However, all have certain serious limitations and usually yield erroneous results when used outside those limits of temperature and pressure to which they seem to be intrinsically adapted.…”
“…Arc representation of vapor pressure data for aniline. , Kahlbaum [14]; , Gurevich and Sigalovskaya [15]; , Gould et al [16]; , Holtzlander and Riggle [17]; Röck [18]; , Stephenson and van Winkle [19]; , Pannetier et al [20]; , Danov and Shinyaeva [21]; , Gopal and Rizvi [22]; , Campbell et al [23]; , Maher and Smith [24];…”
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